CN109548368B - Energy storage cabinet and control method thereof - Google Patents
Energy storage cabinet and control method thereof Download PDFInfo
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- CN109548368B CN109548368B CN201811408661.2A CN201811408661A CN109548368B CN 109548368 B CN109548368 B CN 109548368B CN 201811408661 A CN201811408661 A CN 201811408661A CN 109548368 B CN109548368 B CN 109548368B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
Abstract
The embodiment of the invention relates to the technical field of energy storage systems, in particular to an energy storage cabinet and a control method thereof, wherein the method comprises the following steps: when the energy storage cabinet is in a standby state, starting a refrigerating device to adjust the ambient temperature of the energy storage cabinet so as to enable the ambient temperature to be within a first preset temperature range; when the energy storage cabinet is in a working state, the refrigerating device, the exhaust fan and the air supply fan are started to adjust the ambient temperature of the energy storage cabinet at the same time, so that the ambient temperature is within a second preset temperature range. According to the temperature adjusting method of the energy storage cabinet provided by the embodiment of the invention, the air conditioner, the energy storage converter fan and the fan in the energy storage cabinet can be controlled, so that the high-efficiency temperature control in the energy storage cabinet is realized, and the overall efficiency of the energy storage cabinet is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of energy storage systems, in particular to an energy storage cabinet and a control method thereof.
Background
Along with the more and more extensive application of energy storage power station, energy storage rack has obtained more extensive application owing to have better volume utilization. At the present stage, due to the increase of applications, people put forward more requirements on the volume and the energy density of the energy storage cabinet; the energy storage cabinet mainly comprises power electronic devices such as a battery, an inverter and a cable, wherein the battery is more sensitive to temperature than other power electronic devices, so that the energy storage cabinet has higher control requirements on temperature intervals and precision in the cabinet.
The inventor discovers that in the process of implementing the invention: in the traditional market, an air conditioner is mainly adopted for controlling the temperature inside the energy storage cabinet, but on one hand, the air mobility in the energy storage cabinet is poor, and the temperature equalization of a battery in the cabinet is difficult to ensure; on the other hand, in the working process of the energy storage cabinet, certain power consumption can be consumed by heat management devices such as an air conditioner and a fan, so that the running efficiency of the whole energy storage cabinet can be reduced, how to effectively control the work of the energy storage cabinet is achieved, and the problem of improving the heat management efficiency is solved.
Disclosure of Invention
The embodiment of the invention mainly solves the technical problem of low heat management efficiency of the existing energy storage cabinet.
In order to solve the above technical problem, one technical solution adopted by the embodiment of the present invention is: the temperature adjusting method of the energy storage cabinet is applied to the energy storage cabinet, and comprises the following steps: when the energy storage cabinet is in a standby state, starting a refrigerating device to adjust the ambient temperature of the energy storage cabinet so as to enable the ambient temperature to be within a first preset temperature range; when the energy storage cabinet is in a working state, the refrigerating device, the exhaust fan and the air supply fan are started to adjust the ambient temperature of the energy storage cabinet at the same time, so that the ambient temperature is within the second preset temperature range.
Optionally, the first preset temperature range is-20 ℃ to 55 ℃.
Optionally, the operating state includes: a charged state and a discharged state; when the energy storage cabinet is in a charging state or a discharging state, the second preset temperature range is-10 ℃ to 45 ℃.
Optionally, when the energy storage cabinet is in an operating state, the method further includes: and when the temperature of the air inlet of the energy storage converter is higher than a preset third temperature, starting an air suction fan and an air exhaust fan to dissipate heat of the energy storage converter.
Optionally, after the energy storage cabinet is charged, the suction fan is controlled to be in a working state.
Optionally, the ambient temperature is an average value of the temperatures of the energy storage cabinets acquired by the multi-path battery management system.
Optionally, when the ambient temperature exceeds 70 ℃, an alarm device is started to alarm at a high temperature.
Optionally, the temperature of an air inlet in the energy storage converter is higher than 60 ℃, and the alarm device is started to give a high-temperature alarm.
In order to solve the above technical problem, another technical solution adopted by the embodiment of the present invention is: the utility model provides an energy storage rack, the energy storage rack includes the cabinet body, battery management system, install in the external energy storage converter of cabinet, refrigerating plant, install in internal battery module, power electronic device, induced draft fan and the air supply fan of cabinet to and, the control unit with battery management system, energy storage converter the refrigerating plant the battery module induced draft fan and air supply fan electric connection, the control unit is based on battery management system, power electronic device the energy storage converter refrigerating plant the battery module the induced draft fan with the air supply fan carries out above-mentioned method.
Optionally, the energy storage cabinet further comprises an air suction fan and an air exhaust fan, the air suction fan and the air exhaust fan are respectively installed at the top and the bottom of the cabinet body, and the air suction fan and the air exhaust fan are respectively connected with the control unit.
According to the temperature adjusting method of the energy storage cabinet provided by the embodiment of the invention, the air conditioner, the energy storage converter and the fan in the energy storage cabinet can be controlled, so that the high-efficiency temperature control in the energy storage cabinet is realized, and the overall efficiency of the energy storage cabinet is improved.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage cabinet according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the energy storage converter protection device in FIG. 1;
fig. 3 is a block diagram of an energy storage cabinet according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for adjusting the temperature of an energy storage cabinet according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a control process of the air conditioner by the control unit according to the embodiment of the invention;
fig. 6 is a schematic diagram of a control process of the energy storage converter by the control unit according to the embodiment of the invention;
fig. 7 is a schematic structural diagram of an energy storage cabinet according to another embodiment of the present invention.
Detailed Description
In order to make the objects, aspects and advantages of the present invention more apparent, the present invention will be described in further detail with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
First, an energy storage cabinet is provided in an embodiment of the present invention, and referring to fig. 1 specifically, fig. 1 is a schematic structural diagram of an energy storage cabinet 100 provided in an embodiment of the present invention, and as shown in fig. 1, the energy storage cabinet 100 includes: the energy-saving air conditioner comprises a cabinet body 10, an energy storage converter (Power Conversion System-PCS) 20, a battery module 30 installed in the cabinet body 10, Power electronic devices (not shown in figure 1), an air conditioner side wind shield 40 and an air conditioner 50.
Two battery bins 13 for installing the battery module 30 are symmetrically arranged in the cabinet body 10. The battery module 30 is arranged in the battery compartment, the battery module 30 comprises a plurality of battery packs, and every two adjacent battery packs are arranged in the battery compartment 13 at equal intervals. The air conditioner side wind shield 40 is covered on the bin opening of the battery bin 13 and used for guiding wind in an air duct.
In this embodiment, the top of the cabinet 10 is provided with a plurality of ventilation holes 41, and the bottom of the cabinet 10 is provided with a plurality of air outlet holes 42. The plurality of air suction holes 41 can be respectively provided with corresponding air suction fans (not shown in fig. 1); the corresponding positions of the air outlets 42 are respectively provided with corresponding air supply fans (not shown in fig. 1). In the embodiment shown in fig. 1, the number of the air suction holes and the number of the air outlet holes are four, and two battery compartments 13 are symmetrically arranged in the cabinet body 10, so that the bottom and the top in the cabinet body 10 are respectively provided with eight air supply fans and eight air exhaust fans, and in other embodiments, the number of the air supply fans and the number of the air exhaust fans can be adjusted according to actual requirements.
The energy storage converter 20 is installed on the outer side of the cabinet body 10 and used for controlling the battery module 30 to charge and discharge, in this embodiment, the energy storage converter 20 is installed outside the cabinet body 10 to reduce the load of the air conditioner and improve the overall operating efficiency of the energy storage cabinet.
The air conditioner 50 is installed outside the cabinet 10 as a cooling/heating device, and is configured to form a heat dissipation channel through an air return opening of the air conditioner 50 and an air outlet of the air conditioner 50, so as to deliver cool air/hot air to the battery compartment 13, and lower/raise the temperature of the battery module 30. In some embodiments, the cooling device may also be other cooling devices, and is not limited to the air conditioner in this embodiment.
In the energy storage cabinet 100 shown in fig. 1, the energy storage converter 20 and the air conditioner 50 are installed on the outer side of the cabinet 10 in a left-right symmetry manner, and in other embodiments, the installation position of the air conditioner 50 may also be changed along with the installation position of the energy storage converter 20.
In order to prevent short circuit between the air from the air outlet and the air return inlet, in some embodiments, as shown in fig. 1, a flow separation plate 60 is disposed between the air outlet and the air return inlet, and the flow separation plate 60 is transversely installed on a side of the air conditioner side wind shielding plate 40 facing the air conditioner 50 to separate the air outlet from the air return inlet.
As shown in fig. 1, the energy storage cabinet 100 further includes: and the air guide cover 70 is covered on the air outlet of the air conditioner 50.
The air conditioner 50 further comprises an air conditioner protective cover 51, the air conditioner 50 protective cover 51 is covered outside the air conditioner 50, and the protective cover 51 is used for protecting the air conditioner 50 from being damaged and preventing foreign matters such as catkin from entering the air conditioner 50.
In the embodiment of the present invention, the energy storage converter 20 is installed outside the cabinet 10, and in this embodiment, the energy storage converter 20 is installed outside the cabinet 10, so that the load of the air conditioner can be reduced, and the overall operating efficiency of the energy storage cabinet can be improved.
As shown in fig. 1, the energy storage cabinet 100 further includes: energy storage converter protection 90. As shown in fig. 2, the energy storage converter protection device 90 includes: the energy storage converter comprises an energy storage converter protective cover 91, two filter screens 92, an air suction fan 93, an exhaust fan 94 and a dust falling assembly 95.
The energy storage converter protective cover 91 covers the energy storage converter 20 for protecting and radiating the energy storage converter 20. An opening is respectively arranged on the side wall and the bottom of the energy storage converter protective cover 91, and the two filter screens 92 cover the two openings respectively. The exhaust fan 94 and the suction fan 93 are respectively mounted on the two filter screens 92 of the energy storage converter protective cover 91. The dust falling assembly 95 is installed at the bottom of the protection cover 91. For preventing dust from entering the energy storage converter protective cover 91. Specifically, the dust falling assembly 95 includes a lower baffle 951 and an upper baffle 952, both of which are u-shaped, and the bottom surface of the upper baffle 952 is parallel to the horizontal plane, and both sides of the upper baffle 952 are fixed to the lower end of the shield 91. The bottom surface of lower baffle 951 is the contained angle setting with the horizontal direction, and its both sides are fixed in the lower extreme of upper baffle 952. The upper baffle plate 952 is provided with a notch, and the notch is used for the air suction fan 93 to supply air upwards from one side of the lower baffle plate 951 during operation.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an energy storage cabinet 200 according to another embodiment of the present invention. The energy storage cabinet 200 includes the structure described in the above energy storage cabinet 100, and the structural difference between the energy storage cabinet 200 and the above energy storage cabinet 100 is that the power electronic device 210 in the energy storage cabinet 200 is disposed at the bottom of the energy storage cabinet 200, and the power electronic device 210 may be a programmable controller, a weak current box, an electricity meter, some power supplies, a switch, and the like.
The energy storage cabinet 100 and the energy storage cabinet 200 can be used in the method for adjusting the temperature of the energy storage cabinet in the following embodiments of the present invention, and after the method steps in the following embodiments are performed, effective thermal management control on the energy storage cabinet can be achieved, and efficient temperature control inside the energy storage cabinet can be achieved.
In order to provide detailed understanding for those skilled in the art to perform a specific control process of the following method steps, taking the energy storage cabinet 100 as an example, the embodiment of the present invention further provides a structural block diagram of the energy storage cabinet 100.
Referring to fig. 3 specifically, fig. 3 is a block diagram of an energy storage cabinet 100 according to an embodiment of the present invention, and as shown in fig. 3, the energy storage cabinet 100 includes the following components: energy storage converter 20, air conditioner 50, battery module 30, power electronics (not shown in fig. 3), updraft fan, air supply fan, induced draft fan and exhaust fan in addition, still include: a control unit 110 and a battery management system 120.
The control unit 110 is electrically connected to the battery management system 120, the energy storage converter 20, the air conditioner 50, the battery module 30, the exhaust fan, the blower fan, the suction fan, and the exhaust fan.
The battery module 30 is used for storing electric energy, and the battery management system 120 is connected to the battery module 30 and is used for obtaining the voltage of the battery system module 30 and controlling charging and discharging of the battery module 30 according to the voltage. The energy storage converter 20 is connected to the battery management system 120, and is used for converting ac and dc so that the battery management system 12 can control charging and discharging of the battery module 30.
The control unit 110 is a core unit of the energy storage cabinet 100, and may perform the following steps based on the above connection relationship. Referring to fig. 4 specifically, fig. 4 is a schematic flow chart of a method for adjusting a temperature of an energy storage cabinet according to an embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:
41. when the energy storage cabinet is in a standby state, a refrigerating device is started to adjust the ambient temperature of the energy storage cabinet, so that the ambient temperature is within a first preset temperature range.
The refrigerating device is the air conditioner in fig. 4, and in other embodiments, the refrigerating device may also be other devices capable of achieving cooling/heating.
The standby state is a state in which the energy storage cabinet is started but does not work, and in this state, the energy storage cabinet needs to be maintained within a first preset temperature range, wherein the first preset temperature is-20 ℃ to 55 ℃.
In the step, the air conditioner 50 is started to maintain the temperature of the energy storage cabinet in a range of-20 ℃ to 55 ℃ in a standby state; specifically, in the standby state, when the ambient temperature of the energy storage cabinet is lower than-20 ℃, the control unit 120 may control the air conditioner 50 to start the heating function, so as to maintain the ambient temperature of the energy storage cabinet above-20 ℃; in the standby state, when the ambient temperature of the energy storage cabinet is higher than 55 ℃, the control unit 120 may control the air conditioner 50 to start the cooling state, so as to keep the ambient temperature of the energy storage cabinet below 55 ℃.
The ambient temperature is an average value of the ambient temperature of the energy storage cabinet acquired by the multi-path battery management system 120, and specifically, the temperature average value may be acquired by the 4-path battery management system 120 in this embodiment.
42. When the energy storage cabinet is in a working state, the refrigerating device, the exhaust fan and the air supply fan are started to adjust the ambient temperature of the energy storage cabinet at the same time, so that the ambient temperature is within the second preset temperature range.
The working state is that the energy storage cabinet is in a charging or discharging state, and when the energy storage cabinet is in the charging or discharging state, the energy storage cabinet needs to be maintained within a second preset temperature range. Specifically, when the energy storage cabinet is in a charging state, the second preset temperature range is-10 ℃ to 45 ℃; when the energy storage cabinet is in a discharging state, the second preset temperature range is-20 ℃ to 45 ℃.
It should be noted here that in this step, the control unit 110 needs to coordinate the air conditioner 50 and the id fan and the blower fan at the same time to control the temperature inside the energy storage cabinet 100.
When the energy storage cabinet 100 works, heat can be generated in a charging or discharging state, and meanwhile, the air exhaust fan and the air supply fan are started, so that on one hand, air in the energy storage cabinet 100 can flow, the temperature in the energy storage cabinet 100 cannot be quickly raised, the accumulation of heat in the energy storage cabinet 100 can be reduced, and the local temperature of a battery in the energy storage cabinet 100 is prevented from being higher; on the other hand, the exhaust fan and the power consumption of the air supply fan are much smaller than that of the air conditioner, so that the opening time of the air conditioner can be shortened, and the operating efficiency of the energy storage cabinet is improved.
In some embodiments, when the energy storage cabinet is in a charging or discharging state, the energy storage converter 20 is also in an operating state, and the energy storage converter 20 generates corresponding heat in the operating state, so that it is required to control the energy storage converter 20 to operate in a proper temperature operating range to ensure that it is not turned off due to an over-high temperature.
According to the energy storage cabinet provided by the embodiment of the invention, the air suction fan is arranged above the energy storage converter 20, and the air exhaust fan is arranged below the energy storage converter 20 and used for cooling the bin of the energy storage converter 20. Specifically, when the temperature of the air inlet of the energy storage converter 20 is higher than a preset third temperature, the air suction fan and the air exhaust fan are started to cool the energy storage converter 20.
In this embodiment, the preset third temperature is 40 ℃, that is, when the temperature of the air inlet of the energy storage converter 20 is higher than 40 ℃, the air suction fan and the air exhaust fan are started, and this temperature control strategy can ensure that the temperature in the energy storage converter is lower than 60 ℃ and the power consumption is as low as possible. Optionally, the opening temperature and the return difference temperature of the suction fan and the exhaust fan can be adjusted according to actual needs; further, the suction fan and the exhaust fan may also be set with a speed regulation strategy, for example, it may be set such that the suction fan at the air inlet is started first and the exhaust fan at the air outlet is started later.
In this embodiment, after the energy storage cabinet is charged, the control unit is further configured to start the suction fan 93 to operate, and the dust on the filter screen 92 can be removed by controlling the suction fan 93 to rotate reversely.
In some embodiments, in order to avoid excessive temperature in the energy storage cabinet or the energy storage converter 20, a corresponding alarm device may be provided to alarm when the temperature in the energy storage cabinet or the energy storage converter 20 is too high. Specifically, when the temperature in the energy storage cabinet exceeds 70 ℃, the alarm device is started to give a high-temperature alarm. And when the temperature of the energy storage converter 20 is higher than 60 ℃, starting an alarm device to give an alarm at a high temperature. Meanwhile, in order to prompt the temperature abnormality in the cabinet, the alarm device can also start the alarm device to alarm when the temperature of the return air inlet of the air conditioner 20 is lower than minus 30 ℃ or higher than 60 ℃.
According to the temperature adjusting method of the energy storage cabinet provided by the embodiment of the invention, the air conditioner, the energy storage converter and the fan in the energy storage cabinet can be controlled, so that the high-efficiency temperature control in the energy storage cabinet is realized, and the overall efficiency of the energy storage cabinet is improved.
The following is a complete description of different control logics of the air conditioner 50, the energy storage converter 20 and the fans in the energy storage cabinet based on the control unit 110.
Referring to fig. 5, fig. 5 is a control process of the air conditioner 50 by the control unit 110 according to the embodiment of the present invention, and as shown in fig. 5, the control process mainly includes:
510. judging whether the energy storage converter is in a working state or not; if yes, go to step 511, if no, go to step 518.
511. And judging whether the ambient temperature is less than or equal to minus 10 ℃, if so, executing step 512, and if not, executing step 515.
The environment temperature is the average temperature value in the energy storage cabinet acquired by the 4-path battery management system.
512. And starting the air conditioner to heat.
In the process of turning on the heating of the air conditioner, optionally, the method further comprises: when the temperature difference between the highest temperature and the lowest temperature in the multiple paths of temperatures in the energy storage cabinet is larger than or equal to minus 10 ℃, the temperature average value in the energy storage cabinet acquired by the 4 paths of battery management systems is stopped being used as temperature judgment, and the temperature reported by the air return inlet of the air conditioner is changed to be used as temperature judgment so as to control the work of the air conditioner, so that the judgment of the temperature which is influenced by abnormal data acquired by the battery management systems can be avoided.
513. It is determined whether the ambient temperature is greater than or equal to 0 deg.C, if yes, go to step 514, and if no, go to step 513.
514. The air conditioner is stopped.
515. It is determined whether the ambient temperature is less than or equal to 45 deg.C, if yes, go to step 514, and if no, go to step 516.
516. And starting an air conditioner for refrigeration.
517. And judging whether the ambient temperature is less than or equal to 40 ℃, if so, executing the step 514, and if not, executing the step 517.
In some embodiments, the ambient temperature may also be adjusted according to actual needs, and is not limited to 40 ℃.
518. And judging whether the energy storage converter is in a standby state before charging, if so, executing a step 519, and if not, executing a step 523.
519. It is determined whether the ambient temperature is less than or equal to 10 ℃, if yes, go to step 520.
In some embodiments, the inlet temperature of the energy storage converter can be adjusted according to actual needs, and is not limited to 40 ℃.
520. And starting the air conditioner to heat.
521. It is determined whether the ambient temperature is greater than or equal to-10 deg.C, if so, go to step 522.
522. And starting the energy storage converter to enable the energy storage converter to be in a working state, and executing the step 511.
523. It is determined whether the ambient temperature is less than or equal to-20 deg.C, if so, go to step 524, and if not, go to step 514.
524. And starting the air conditioner to heat.
525. And judging whether the ambient temperature is greater than or equal to-10 ℃, if so, executing step 514, and otherwise, executing step 515.
Referring to fig. 6, fig. 6 is a process of controlling the energy storage converter by the control unit according to the embodiment of the present invention, and as shown in fig. 6, the process mainly includes:
610. judging whether the energy storage converter is in a working state or not; if yes, go to step 511, if no, go to step 614.
611. And judging whether the temperature of the air inlet of the energy storage converter is greater than or equal to 40 ℃, if so, executing a step 612, and if not, ending.
In some embodiments, the inlet temperature of the energy storage converter can be adjusted according to actual needs, and is not limited to 40 ℃.
612. And starting the air suction fan and the air exhaust fan to work.
613. And judging whether the temperature of the air inlet of the energy storage converter is less than or equal to 35 ℃, if so, ending, and otherwise, executing the step 613.
In some embodiments, the inlet temperature of the energy storage converter can be adjusted according to actual needs, and is not limited to 35 ℃.
In some embodiments, the cooling fan of the energy storage converter can be provided with a speed regulation strategy, and the rotating speed is adjusted according to different environmental temperatures or reported temperatures of the energy storage converter; or the fans with different numbers can be started according to different ambient temperatures.
614. And judging whether the energy storage converter is in a charging ending state, if so, executing a step 615, and if not, ending.
And step 615, starting the suction fan to work.
The embodiment of the present invention further provides a control process of the control unit 110 for the exhaust fan and the air supply fan in the energy storage cabinet, where the control process mainly includes: in the charging and discharging process, when the fan in the air conditioner 50 is started, the air exhaust fan and the air supply fan are started; when the fan in the air conditioner 50 is turned off, the suction fan and the blowing fan are stopped.
According to the temperature adjusting method for the energy storage cabinet provided by the embodiment of the invention, the high-efficiency temperature control in the energy storage cabinet is realized through the temperature control strategy of the control unit, so that the overall efficiency of the energy storage cabinet is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The temperature adjusting method of the energy storage cabinet is applied to the energy storage cabinet and is characterized in that the energy storage cabinet comprises a cabinet body, an energy storage converter, a refrigerating device, an air draft fan, an air supply fan, an air draft fan and an air exhaust fan, wherein the energy storage converter, the refrigerating device, the air draft fan, the air supply fan, the air draft fan and the air exhaust fan are arranged outside the cabinet body;
the method comprises the following steps:
when the energy storage cabinet is in a standby state, starting a refrigerating device to adjust the ambient temperature of the energy storage cabinet so as to enable the ambient temperature to be within a first preset temperature range;
when the energy storage cabinet is in a working state, the refrigerating device is started, the exhaust fan and the air supply fan are started, and meanwhile, the ambient temperature of the energy storage cabinet is adjusted, so that the ambient temperature is in a second preset temperature range, and when the temperature of an air inlet of the energy storage converter is higher than a preset third temperature, the air suction fan and the air exhaust fan are started to dissipate heat of the energy storage converter.
2. The method of claim 1, wherein the first predetermined temperature range is-20 ℃ to 55 ℃.
3. The method of claim 1, wherein the operating state comprises: a charged state and a discharged state;
when the energy storage cabinet is in a charging state or a discharging state, the second preset temperature range is-10 ℃ to 45 ℃.
4. The method according to claim 3, wherein after the energy storage cabinet is charged, the suction fan is controlled to be in a working state, and the working state is reverse rotation for dust removal.
5. The method according to any one of claims 1 to 3, wherein the ambient temperature is an average value of the temperatures of the energy storage cabinets collected by the multi-battery management system.
6. A method according to any of claims 1-3, characterized in that an alarm device is activated for a high temperature alarm when the ambient temperature exceeds 70 ℃.
7. The method according to claim 6, characterized in that the alarm device is activated to give a high temperature alarm when the temperature in the energy storage converter is higher than 50 ℃.
8. An energy storage cabinet is characterized by comprising a cabinet body, a battery management system, an energy storage converter, a refrigerating device, a battery module, a power electronic device, an air draft fan, an air supply fan, an air draft fan and an air exhaust fan, wherein the energy storage converter is arranged outside the cabinet body;
a control unit electrically connected with the battery management system, the power electronic device, the energy storage converter, the refrigerating device, the battery module, the exhaust fan, the air supply fan, the air suction fan and the exhaust fan,
the control unit executes the method of any one of claims 1-3 based on the battery management system, the power electronics, the energy storage converter, the refrigeration device, the battery module, the id fan, and the blower fan.
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| CN110110367B (en) * | 2019-04-02 | 2023-08-22 | 南京四象新能源科技有限公司 | Electrochemical energy storage cabinet thermal simulation method and system |
| CN111641004A (en) * | 2020-06-24 | 2020-09-08 | 阳光电源股份有限公司 | Temperature control method for energy storage system and energy management system |
| CN113741592A (en) * | 2021-08-26 | 2021-12-03 | 深圳市禾望电气股份有限公司 | Control method for temperature control system of energy storage converter |
| CN115657749A (en) * | 2022-09-07 | 2023-01-31 | 北京燕开新源科技有限公司 | Temperature control method and device, energy storage system, computer equipment and storage medium |
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